Steaming-plug.



J. A. MURPHY.

STEAMING PLUG.

A.APPLlcATloM HLED Amma, |916.

1,209,869 Patented Des. 26, 1916.,

WITNESS JOHN A. MURPHY, lOF PHILADELPHIA, PENNSYLVANIA.

STEAMINGr-PLUG.

Application filed April 29, 1916.

To all whom z5 may concern Be it known that I, JOHN A. MURPHY, a citizenof the United States, residing at Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Steaming-Plugs, of which the following is aspecification.

The object of this invention is to provide a novel device for preventingaccumulation of paraffin in the casing of oil wells, and, in its nature,comprises a steaming plug, which may be suitably disposed in the casingat whatever distance below the ground is desirable, and which isprovided with a longitudinally-extending bore communicating, at itsends, with the oil-well pipe and provided, also, with a steam-portcommunicating, at one end, with said bore and, at its other end, with asteam-pipe. Steam from the steam-pipe is blown through the plug into theoil-well pipe, thus freeing the latter of accumulation of paraffin andpermitting free flow of the crude oil.

Another object is to provide a steamingplug which is simple inconstruction, which is cheap to manufacture, and which is thoroughlyefficient in operation.

In the accompanying drawing, forming part of this specification, and inwhich like reference-characters denote corresponding parts throughoutthe several views: Figure 1 is a perspective view of my steaming-plug;Fig. 2 is a view in central vertical section of my steaming-plug,showing, partly broken away, the oil-well pipe and steampipecommunicating therewith; Fig. 3 is a horizontal section, on the line 33, Fig. 2.

Referring, now, in detail to the drawing: l designates my steaming-plug,which is a casting preferably annular in cross section, and providedwith a longitudinal bore or opening 2 preferably threaded at both endsthereof for engagement with the lthreaded ends of oil-well pipe sections4, 4. The plug is also provided with a port 3 preferably Specication ofLetters Patent.

Patented Dec. 26, 1916.

Serial No. 94,375.

parallel with the bore 2 and having a bent inner end 4 communicatingwith said bore. The outer end of the port 3 is threaded, preferably, asshown in Fig. 2, for engagement with the threaded end of a steam-pipe 5.The port 3 is preferably of smaller diameter than the opening or bore 2.

In operation, steam from the pipe 5 is blown through the port 3 into thebore 2, and thence through the pipe 4, thereby freeing the latter fromparaflin which tends to accumulate therein, and permitting easy iiow ofthe crude oil.

While, for the purpose of complying with the patent statutes, I havedescribed with particularity a concrete embodiment of my inventiveideas, it will be understood that departures in detail from the physicalpresentment vherein disclosed may be made, within the scope of theappended claim, without departing from the spirit of the invention, orsacrificing any of its advantages.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent of the United States is:

The combination with two vertically-disposed and vertically alinedsections of an oil-well suction-pipe, the adjacent ends of said sectionsbeing eXteriorly screw-threaded, of a cylindrical casting having alongitudinally-extending bore, the wall of which, at each end, isscrew-threaded and engaged by the threaded ends of said pipe-sections,said casting having, also, a port extending parallel, and at its innerend communicating, with said bore, the wall of said port, at the outerend, being screw-threaded, and a verticallydisposed steam-pipe having aneXteriorlythreaded end screwed into the threaded outer end of said port.

In testimony whereof, I affix my signature in the presence of twowitnesses.

JOHN A. MURPHY.

Witnesses:

THos. A. EVERLY, WM. B. McLAUGHLIN.

Gopies of this patent may be obtained for ive cents each, by addressingthe Commissioner of Patents.

Washington, D. C. Y

